【摘要】：平衡千斤頂是兩柱掩護式液壓支架的重要調控部件,常規(guī)雙向鎖控制模式易造成安全閥頻繁噴液,不能很好適應自動化控制要求。利用AMESim軟件建立了某兩柱掩護式液壓支架剛-液平面運動模型,模擬移架前后頂板5°傾角變化條件,比較了傳統(tǒng)雙向鎖控制模式和差動控制、低壓控制和浮動雙向鎖控制模式下液壓支架姿態(tài)和平衡千斤頂響應過程。結果表明:后3種控制模式均可有效避免安全閥開啟,降壓效果方面低壓控制最優(yōu)、浮動雙向鎖次之,差動控制有噴液風險;非主動調控模式下,差動控制和低壓控制模式頂梁前端先接頂,浮動雙向鎖控制頂梁后端先接頂。研究結果為平衡千斤頂控制系統(tǒng)的選型和優(yōu)化提供新參考。
[Abstract]:Balance Jack is an important control component of two-column shield hydraulic support. The conventional two-way lock control mode can easily cause frequent injection of relief valve, which can not meet the requirements of automatic control. The rigid-liquid plane motion model of a two-column shield hydraulic support is established by using AMESim software. The changing conditions of 5 擄inclination of roof before and after moving the frame are simulated, and the traditional two-way lock control mode and differential control are compared. Low-pressure control and floating two-way lock control mode of hydraulic support attitude and balance Jack response process. The results show that the latter three control modes can effectively avoid the opening of the relief valve, the low pressure control is the best in the effect of lowering the pressure, the floating bidirectional lock is the second, and the differential control has the risk of injection. The front end of the top beam is connected first with the differential control and the low voltage control mode, and the back end of the top beam is first connected with the floating bidirectional lock. The results provide a new reference for the selection and optimization of balanced Jack control system.
【作者單位】： 天地科技股份有限公司開采設計事業(yè)部;煤炭科學研究總院開采研究分院;
【基金】：國家自然基金(山西煤基低碳聯(lián)合基金)重點支持項目(U1610251)
【分類號】：TD355.4
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本文編號：2227736